September weather forecast and climate
Raymer, CO

Weather in September

The first month of the autumn, September, is also a moderately hot month in Raymer, Colorado, with average temperature ranging between max 79.5°F (26.4°C) and min 56.3°F (13.5°C).

Temperature

In September, the average high-temperature slightly decreases, from a hot 86.7°F (30.4°C) in August, to a moderately hot 79.5°F (26.4°C). In Raymer, the average low-temperature is 56.3°F (13.5°C).

Humidity

Months with the lowest humidity are August and September, with an average relative humidity of 45%.

Rainfall

In Raymer, during September, the rain falls for 8.5 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 104 rainfall days, and 12.09" (307mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Raymer.

Daylight

In September, the average length of the day in Raymer, Colorado, is 12.4h.

Sunshine

The average sunshine in September is 10.6h.

UV index

The average daily maximum UV index in Raymer, Colorado, is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the least humid month in Raymer?

Months with the lowest humidity in Raymer, Colorado, are August and September, with an average relative humidity of 45%.

What is the average humidity in September in Raymer?

In September, the average relative humidity in Raymer is 45%.

How many days does it rain in September in Raymer?

In Raymer, Colorado, in September, during 8.5 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When it does not snow in Raymer?

June through September are months without snowfall in Raymer, Colorado.

Does it snow in Raymer in September?

In Raymer, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Raymer?

In September, the average length of the day is 12.4h.

How long on average sun shines in September in Raymer?

In Raymer, the average sunshine in September is 10.6h.

What is the UV index reading in September in Raymer?

In September, the average daily maximum UV index in Raymer is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Raymer, CO

Average temperature in September - Raymer, CO
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.7°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is December (22.5°F).

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Average pressure in September
Raymer, CO

Average pressure in September - Raymer, CO
  • Average pressure in September: 29.95"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Raymer, CO

Average wind speed in September - Raymer, CO
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is December (7.8mph).

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Average humidity in September
Raymer, CO

Average humidity in September - Raymer, CO
  • Average humidity in September: 45%

The month with the highest relative humidity is January (64%).
Months with the lowest relative humidity are August and September (45%).

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Average rainfall in September
Raymer, CO

Average rainfall in September - Raymer, CO
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.39").

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Average rainfall days in September
Raymer, CO

Average rainfall days in September - Raymer, CO
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (2.9 days).

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Average snowfall in September
Raymer, CO

Average snowfall in September - Raymer, CO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.64").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Raymer, CO

Average snowfall days in September - Raymer, CO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (8.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Raymer, CO

Average daylight in September / Average sunshine in September - Raymer, CO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 10.6h

Months with the most sunshine are June, July and August (Average sunshine: 11.8h).
Months with the least sunshine are February and December (Average sunshine: 6.5).

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Average sunshine days in September
Raymer, CO

Average sunshine days in September - Raymer, CO
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in September
Raymer, CO

Average UV index in September - Raymer, CO
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Raymer, CO

Average cloud cover in September - Raymer, CO
  • Average cloud cover in September: 17

The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in September
Raymer, CO

Average visibility in September - Raymer, CO
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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